void XKMSStatusImpl::load()

in xsec/xkms/impl/XKMSStatusImpl.cpp [104:214]
70 lines of code
18 McCabe index (conditional complexity)

void XKMSStatusImpl::load() {

	if (mp_statusElement == NULL) {

		// Attempt to load an empty element
		throw XSECException(XSECException::StatusError,
			"XKMSStatus::load - called on empty DOM");

	}

	/* Load the StatusValue attribute */

	mp_statusValueAttr = 
		mp_statusElement->getAttributeNodeNS(NULL, XKMSConstants::s_tagStatusValue);

	/* Decode as appropriate*/
	if (mp_statusValueAttr == NULL) {
		// Attempt to load an empty element
		throw XSECException(XSECException::StatusError,
			"XKMSStatus::load - No StatusValue attribute found");
	}

	const XMLCh * res = mp_statusValueAttr->getNodeValue();

	// This is actually an QName, but we cheat and find the ':' character by hand
	// without actually checking the qualifier.
	// TODO - CHECK the qualifier.

	int res2 = XMLString::indexOf(res, chPound);
	if (res2 == -1 || XMLString::compareNString(res, XKMSConstants::s_unicodeStrURIXKMS, res2)) {
			throw XSECException(XSECException::StatusError,
				"XKMSStatus::load - StatusValue not in XKMS Name Space");
	}
	res = &res[res2+1];

	for (m_statusValue = XKMSStatus::Indeterminate; 
		m_statusValue > XKMSStatus::StatusUndefined; 
		m_statusValue = (XKMSStatus::StatusValue) (m_statusValue-1)) {

		if (strEquals(XKMSConstants::s_tagStatusValueCodes[m_statusValue], res))
			break;

		
	}

	if (m_statusValue == XKMSStatus::StatusUndefined) {

		throw XSECException(XSECException::StatusError,
			"XKMSStatus::load - Unknown StatusValue provided");

	}

	/* Now we need to run through the status values */
	DOMElement * e = findFirstElementChild(mp_statusElement);
	while (e != NULL) {

		const XMLCh * vs = getXKMSLocalName(e);

		StatusValue v;

		if (strEquals(vs, XKMSConstants::s_tagValidReason)) {
			v = Valid;
		}
		else if (strEquals(vs, XKMSConstants::s_tagInvalidReason)) {
			v = Invalid;
		}
		else if (strEquals(vs, XKMSConstants::s_tagIndeterminateReason)) {
			v = Indeterminate;
		}
		else {
			throw XSECException(XSECException::StatusError,
				"XKMSStatus::load - Unknown Reason element");
		}

		DOMNode *t = findFirstChildOfType(e, DOMNode::TEXT_NODE);
		if (t == NULL) {
			throw XSECException(XSECException::StatusError,
				"XKMSStatus::load - Expected text node child of reason element");
		}

		/* Strip out the URI prefix */
		const XMLCh * reason = t->getNodeValue();

		int res = XMLString::indexOf(reason, chPound);
		if (res == -1 || XMLString::compareNString(reason, XKMSConstants::s_unicodeStrURIXKMS, res)) {
				throw XSECException(XSECException::StatusError,
					"XKMSStatus::load - StatusReason not in XKMS Name Space");
		}
		reason = &reason[res+1];

		/* Found out what we are! */
		XKMSStatus::StatusReason i;
		for (i = XKMSStatus::Signature; i != XKMSStatus::ReasonUndefined; i = (XKMSStatus::StatusReason) (i-1)) {

			if (strEquals(XKMSConstants::s_tagStatusReasonCodes[i], reason))
				break;

		}

		if (i == XKMSStatus::ReasonUndefined) {
			throw XSECException(XSECException::StatusError,
				"XKMSStatus::load - Unknown StatusReason");
		}

		m_statusReasons[v-1][i-1] = e;

		e = findNextElementChild(e);

	}

}